Article
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Shor-Term Forecasting of Photovoltaic Power Using MLPNN, CNN AND kNN
Version 1
: Received: 7 May 2024 / Approved: 8 May 2024 / Online: 8 May 2024 (15:29:47 CEST)
How to cite: Iheanetu, K.; Obileke, K. Shor-Term Forecasting of Photovoltaic Power Using MLPNN, CNN AND kNN. Preprints 2024, 2024050490. https://doi.org/10.20944/preprints202405.0490.v1 Iheanetu, K.; Obileke, K. Shor-Term Forecasting of Photovoltaic Power Using MLPNN, CNN AND kNN. Preprints 2024, 2024050490. https://doi.org/10.20944/preprints202405.0490.v1
Abstract
This work focuses on short-term forecasting of PV output power. The multilayer perception (MLP), convolutional neural networks (CNN), and k-nearest neighbour (kNN) neural networks have been used singly or in a hybrid (with other algorithms) to forecast solar PV power or global solar irradiance with good success. Their performances in forecasting PV power have been compared with other algorithms but not with themselves. The study aims to compare performance of a number of neural network algorithms in solar PV energy yield forecasting under different weather conditions. The performance of MLPNN, CNN and kNN are being compared using solar PV (hourly) energy yield data for Grahamstown, Eastern Cape, South Africa. The choice of location is part of the study parameters to provide insight into renewable energy power integration in specific areas in south Africa that may be prone to extreme weather conditions. The kNN algorithm was found to have RMSE value of 4.95% and MAE value of 2.74% at its worst performance, and RMSE value of 1.49% and MAE value of 0.85% at its best performance. It outperformed the others by a good margin and kNN could serve as a fast, easy, and accurate tool to forecast solar PV output power.
Keywords
renewable energy; solar; photovoltaic; forecasting; data-driven; machine learning; modelling
Subject
Computer Science and Mathematics, Artificial Intelligence and Machine Learning
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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